CBLN1 and thyroid gland papillary carcinoma: All of them were identified as PLs, with the exception of the signal at m/z 572.48, tentatively identified by Zhang et al. [31] in human papillary thyroid carcinoma as Cer(C34:1) and peak at m/z 687.54 attributed to sphingomyelin SM(d18:1/16:0).